when I was around 12 and my brother was 9, my mom and dad left to go up north for a day (we are in the south) My mom knowing I was responsible, Let me watch my brother for the day until they came back late that night. Problem was we had a VERY toxic relationship in between the 2 of us. a couple of hours later after the parents left(my brother being the psychopath he is with anger issues) got very offended at a stupid sibling joke i said. Instead of normally lashing out he silently went to the kitchen. I casually went to the bathroom and after I was done I came out and my brother from behind me (the bathroom was in a hall so he was at the end and i was walking away from the end) Ran up behind me with a steak knife he heated up with the fireplace outside. my mf as* turned around and ran into my room and locked the door. He was shoving the knife under the door screaming "open up!" He gave up after a while but i still locked myself in the room until my parents came back..
they came back to my brother passed out on the couch with a steak knife in his hand and me starving in my room locked upstairs terrified.
in the end, none of them believed me to this day what happened and my brother still denies it.